Aerial bomb.



IVI. MUTRO.

AERIAL BOMB. s, APPLICATION FILED NOV.20. 916. I [y 1,234,790. f y Patentediuly um.'

Q2 a v K determined, an

srernsrrirnnr oesters? Y 'MICHEL MUTRO, 0F CHESTER, PENNSYLVANIA.

'AERIAL Boren.

Specication of Letters Patent. Patented July 31, 1911"?,d

To all whom t may concern.' Be it known that MrCHAEL Morne, subject of the Emperor of Austria, residing at Chester, in the county. of Delaware and State of Pennsylvania, has invented certain new and useful improvements in Aerial Bombs, of which the following is ey speci# fication. y

,This invention relates to self propelled aerial bombs. Y f

The object o' the invention is to provide a bomb of this4 haracter in which the exact. moment ofexp osio'n oi the charge may be in which the destructive results from the explosion shell be utilized to their highest extent.

A further object is to eliminate. the ernploymel'lt of n. rudder or other steering; mechanism of the usuel type, and vin lien thereof to cause the propeller to perform the f functions oli-a. driver, stabilizer and rudder.

With the above and. other objects in view, as will appear as the nature of the invention isto .be understood, the same consists, generally stated, in an aerial bomb embodyingl a shell casino"` adapted to contain, in

separate compartments the explosive charge and the shrepnel, certain of the compartments being in f communication whereby when the primer or csp is exploded, the ignition and thus explosion of the various explosives will follow in step-bystep order, but practically instantaneously so that shell will be rent from end to end, 'thereby lib-n erating the shrapnel, and causing them to beseettered in lall directions.

'.'Another feature of the invention is the propelling means whichvconsists of an ordinary propeller driven by a suitable motor, thev shaft of the propeller being disposed eccentric togthe longitudinal exis of the shell whereby the shell will be maintained in` a predetermined position, and will be vprevented from being turned on its axis due to'frotation. They propeller through suitable mechanism is connected with a blade mount' ed at thai/point of theprojectile or bomb,

the turning,r of the blade being resisted by the air so that it may be drawn toward the rear of the shell by ngeans of a shaft driven from the propeller motor. y By this means,- as soon as the bomb is released and the vmotor starts its action, the Whole device will be dr1ven forward at e rapid rate'of speed, operating the shaft that connects with the biede, and causing the latter tol approach .a

primer exploding means, it being understood that the latter operation of the blade may be correctly timed previous to the release of the bomb by turning the blade by hand before the firing so as to' canse it to assume e position closer to or further from the firing means.

With these general objects in View, the invention consists in further -novel details of construction hereinafter fully described.

and claimed.

.in the accompanying drawing forming a esters of reference indicate correspondparte,

nig-ure l. is a view in vertical longitudinal section through e bomb constructed in accordsnce with the present invention.

Fig. 2 is a ViewA in end elevation taken from the rear of the bomb disclosing more particularly the` propeller driving mechamsm.

Fig. 3 is a vertical. transverse section taken on the line 3-3 of Fig. l.

Fig. 4: is a vertical transverse section taken on the line "imof Fig. l.

Referring te the drawing', 1 designates the shell or casinoof the bomb which may be made of heavy sheet metal, :md is of general conicel contour, the rear end of the shell being; closed by' a plug or plate 2 that closes access to the interior of the shell and thus prevents any deterioration of the contained explosive charges, or other damage by moisture.

Secured to the plug 2 is e csp in which is arranged the motor for the propeller, the latter being' shown in the preiwnt instance as an ordinary clock work meohonism although any other character of motor found adapted to the 'purpose rney 'be substituted therefor. i l

Arranged centrally und longitudinally of the shell is a tube l one end of'which is of? the specification and in which like till sented in tbe plug 2 and 'tbe other end threaded iuo a partition 5 arranged adjacent to the front end of the sliell and running one -all oi tbe powder receptacle7 the other wills (3, 'T and S being `suitably eonueoted to present a. powder compartment for tlie reception of a suitable powder. prei erably slow limrning, i-irranged Within the tune l is a sbaiii S tlie rear end oi which earries a gear J 'that drives a pinion 10 carried by tlie propeller sl'iai; 11. The forward end of the sliait Carries an exteriorly threaded part 12 that engages the internal, threads ot' tbe tube or tliirnble 13, tbe outer end of which is provided With a bead 1l thai', is rigidly secured to tbe blade. This sleeve is mounted in bearings 15 carried by a plate 1G tbe latter being provided u'i'tn iiriug pins 1T designed to explode a fulminate carried by caps 18 projecting from the iront wall T oi' the powder receptacle. ln Aorder to pause tbe s'iait S. which would naturally be comparatively light, to remain centered relative to tbe tube l, tl'iere are employed a plurality of guides or bearings 19 in Wliieb. tbe sbaiit freely revolves, these bearings l'ieiugr held in place by bolts 2() depending from lbf,- sliell.

flurrounding 'the tube 4l is a 'tubular cass; 551 tbe ends of which are closed by plates und '23 und 'Forni 'in eonjunorion with *die tube u gun cotton or other bieb, explosive Surrounding tbe explosive clfiamber el a tbird chamber 2:3 which is of 'linstrreoisieal contour, and tbe outer Wall if; of .vliifzli in conjunction willi the outer will o'l1 Llie explosivo chamber provides a chamber or bolder l'or the slirapnel. ln addition to tbe wall 3 ol the powder chamber wbivli provided,with-u series of orilices 27 tbv-re is a .sf-.Conil 'partition provided with n series of oriliees Q95 ille two partitions 27 :md 255 in conjunction with tbe longitudinal v vliinli'ical extension Z3() providing;` three 2gas boldinfr chambers 911, il! and 311i, the latter rbamber voininunieating with the elioniber lz through :i series oi' eriices ill. The gas ebambers :w1- snpplied with ges through the' filling' lube-- operating in the usual mannvr. 4

llflxen tlm parte bave been assembled as bou'n in Fig. 1, ti brake 4lever 36 which noi-mully engages with one of the blades of :be propeller 237 is swung on ib; pivot1 iberobj.: pwniitting tbe propeller to drive tbe bomb on :i bormnrtal plane tlnonggb tbe air. "1 li,-xrirml. tbe rotalion of libe propeller shalt. drives 'Clie sliuift 8 und causes the lut- 'ufr ibi'ongfli tbe :ont l2 and lbimbb: 1., lo bili lbe binde rearward or toward tl'ie profil-ller'. 1bn blade bein;v prevented from turning: ibmuu'lx tin' resisianm. presente-'l by tbe :i M tb(l 'proper instant; the tiring pins will explode iba can@ 1% .vl'mreupon the il Les/ingo charge of slow burning black powder Will be ignited, fire backward into the gas chamber and ignite the contents thereof7 and this ignited gas will pass through suitable ports BS into'tlie chamber 9A@ containing the gun cotton or other liigli explosive, whereupon the shell will be. disrupted and torn asunder and the slirapnel will be driven in all (lirections by the explosiveB The improvements herein described While simple in character will be found thoroughly ellicient for the purpose designed, and may be carried into effect Without the necessity of the employnient of expensive machinery for the purpose. i

lt will be understood that the gas, used must necessarily be e combustile gas such as a mixture of hydrogen with e little oxygen, the hydrogen serving also to render the projectile light through its low specific gravity. lt will also be understood that the primers 18 employed mustnecessarily be of such a type as so be very sensitive ilo impact or friolaion since the movementl of the points 17 rearwardly will not produce a heavy blow on accountJ of the slow speed vat; which these points will move. These sensitive primers can of course be suitably arranged through the employment of a proper explosive, it being Well kno-Wn 'that many nitrogen com pounds rare so unstable that. a very slight pressure will effect! their explosion.

lt will be noted that, by reason of the position of tbe propeller 37 below the axis of the shell and of tbe dispositiore. of the motor at tbe rear and the powder charge at the front the device may be so balanced as to tend at all times to maintain its horizontal position,r the oflsetting of alie propeller shaft.

11. also aiding in this by keeping lthe ceutorof `gravity below the axis of the pro lvl mi l; claim isz" 1. 'in' aerial bomb comprising a shell or easing, a blade at tbe forward end of the casing', a 'stein projecting rearwardly from the blade and slidably and rotatably mount- .ed in tbe forward end of the shell, eXplosives within the shell; means operated by r-arward movement oi the blade to ignite tbe explosivos, a propeller at tbe rear end of tbe shell, positive driving means ior the propeller, including a shaft extending in alinenwnl; with tbe stem, and a screw connection buuren tbe sliait and stem whereby movement of the propeller driving; mechanism will more tbv blade rearwardly.

L4. n noi'ial bomb (comprising a shell Ol' easing; a blade at the forward 0nd of the mein?. a hollow stein threaded interiorly und projecting rearwardly i'i'oni tbe blade, said stein boing slidubly and rotatably mounted in the forward end oi' the casing., said blade cilecting resistance to rotation of said stem during passage Vof the shell cluciling a shaft extendihg axilly of the shell through thy airy-explosives within the shell und h aving a threaded head on fits forward means operated by the rearward movement' end engaging in the threaded stem; of the blade to ignite the explosives, a \pro In testimony whereof 'I affix my signature l0 5 peller at the rear end of the shell and po'siin the presence f two witnesses. 1

'riving means orsaid propeller in- MICHAEL MU'JFRG,y

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